a cricket ball of mass 150 gram moving at 36 M per second strikes a back and returns back along the same lines at 21 m per second what is the change in momentum produced if that reminds in contact with the ball for 1 \ 20 seconds what is the average force exerted in Newton
A tennis ball of mass 0.11 kg travelling at 40 m per second hits a wall head on and bounces of returning along the same path at 30 M per second calculate the change in velocity of the ball as well as the change in momentum of that ball including the unit in your answer